Violet Arrow Posted October 19, 2016 Report Share Posted October 19, 2016 I just got my first panel saw. I purchased it off eBay it was advertised as a 7 ppi cross cut saw. I think it is a rip saw Is it worth trying to sharpen the saw for cross cutting? I have zero experience in saw sharpening Thanks Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
drzaius Posted October 19, 2016 Report Share Posted October 19, 2016 I'm not much help here, but it looks like the saw is real dull. There appear to be flat spots on the points. 2 Quote Link to comment Share on other sites More sharing options...
RichardA Posted October 19, 2016 Report Share Posted October 19, 2016 7tpi is rip. if you want crosscut you need anywhere from 10 tpi to 14 tpi. Sharpening a rip is easy, two strokes on every tooth straight across. crosscut is totally different, you have to allow for "fleam" and angle, and every other tooth gets sharpened on one side, then turn the saw and do the same on the other side. Then you need to "set" the teeth so they are all set the same. Take the saw to a professional sharpener, and tell him what you want done. But my best advise is leave that saw rip, and buy one for crosscut. And yours is very dull. The blade needs to be jointed and sharpened as is with very little set in the teeth. 1 Quote Link to comment Share on other sites More sharing options...
Stumpnav Posted October 19, 2016 Report Share Posted October 19, 2016 Keep it rip, sharpen it and start cutting. Get a dedicated crosscut and you'll be much happier. 1 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted October 19, 2016 Report Share Posted October 19, 2016 You can still crosscut with a rip but 7ppi is a bit coarse. Keep it rip and get yourself a crosscut with more teeth per inch. They are more common than ripsaws on sites like ebay or Craigslist. 1 Quote Link to comment Share on other sites More sharing options...
BonPacific Posted October 19, 2016 Report Share Posted October 19, 2016 (edited) 1 hour ago, RichardA said: 7tpi is rip. if you want crosscut you need anywhere from 10 tpi to 14 tpi. Not strictly. I have an 8tpi Disston Crosscut that works fine, though the surface left behind is a little rough. It all depends on what the saw is for. Fewer teeth is faster, especially if you're cutting softwood most of the time. The picture is a touch blurry, but I think that actually is filed for crosscut. In the first image, the filed faces look to be at an angle to the sawplate. I think the saw is just really dull though, making it hard to distinguish. I added red and blue lines to follow what I see as the tooth geometry. If you have a triangular file, drop it in a gullet, and figure out where it naturally wants to sit, or "locks-into" the teeth. If it locks in at a 90 degree angle, it's rip. if it locks in at a 30 or 60ish degree angle, then it's crosscut. Edited October 19, 2016 by BonPacific Better image 1 Quote Link to comment Share on other sites More sharing options...
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